Ejector.



J. G. NASINEO (NOW BY JUDICIAL CHANGE OF NAME J. G. NASIN).

EJEGTOR.

APPLICATION FILED FEB.10,1913.

Patented Aug. 18, 1914.

Z i X w UNITED STATES PATENT OFFICE.

EJECTOR.

To all whom it may concern:

Be it known that I, JOHN G. NASINEO, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Improvement in Ejectors, of which the following is a specification.

The object of this invention is to provide an ejector for use in blanking machines for the purpose of freeing the blank from the sheet of material from which it has been out after each cooperation of the blanking members. In many devices of this nature which have heretofore been produced the moving member which directly ejects the blank or any portion thereof has indirect action upon the blank, that is, its line of movement is not straight outward but is in a curve or indirect manner, the result being that there is more or less side movement of the blank either before or after the cutting and scoring operation, which tends to either produce imperfect blanking or to injure the ejector and render it ineificient in operation.

he primary object of this invention is to overcome these defects and to produce a simple and inexpensive device which will perform its work for an indefinite period without becoming ineflicient in operation.

To these ends my invention consists of the features of construction and combination of parts which will be hereinafter more particularly described and claimed.

In the accompanying drawing forming part of this specification, Figure 1 is a plan of aportion of a bed of a blanking machine showing a blank in position thereon and a plurality of my improved ejectors secured in place to eject the blank; Fig. 2 is a section of Fig. 1 taken upon the line X-X; Fig. 3 is a perspective of one form of my invention; Fig. 4 is a plan of the construction illustrated in Fig. 3; ing at the back of the in Fig. 4; Fig. 6 is a modification; Figs. 7

base plate illustrated detail in section of a and S, are perspective views of other forms of my invention, and Fig. 9 is a perspective of a detail showing a modification of the upper portion of the spring volute.

My invention consists of a base 2 in the form of a square plate having its side edges turned up forming vertical flanges 3. Upon this base is mounted a spring volute 4, the

convolutions of which diminish in diameter Specification of Letters Patent. Application filed February 10, 1913.

Fig. 5 is a view look Patented Aug. 18, 1914. Serial No. 747,282.

from the base to the head portions. The baseportion of the volute is formed with its convolution 5 lying in a horizontal plane while the axis of the volute is vertical from the base plate 2. This lower convolution is secured to the base plate by inturned clips 6, from the upper edges of the flanges 3, and engaged over said lower convolution. The upper convolution 7 is formed into a horizontal plane lying parallel to the base plate. For convenience in mounting the base plate upon the bed of the blanking machine or upon the form which is carried by the bed indicated by A in Figs. 1 and 2, the lower surface of the base plate is serrated or roughened as indicated by 8 in Fig. 5 and glue or other adhesive material is placed on the lower surface of the plate and the plate then stuck upon the surface of the form as illustrated in Figs. 1 and 2. The means for fastening the base plate on the form may be of any suitable construction, for instance the base plate may be formed with downwardly projecting points 9, such as illustrated in Fig. 6, which are adapted to be plunged into the material composing the bed or form carried by the blanking machine.

Ejectors such as described are adapted when used to be positioned as desired upon the bed or form of the machine, for instance as illustrated in Figs. 1 and 2, so that after being depressed by the blank B placed in the machine to be cut and scored such as by the blades 10 and 11 indicated in Fig. 2 and by the closing of the blank mem bers of the blanking machine, they are adapted to expand when the blanking members of the machine open apart and eject the cut and scored parts of the blank free from the bed and form of the machine in position to be easily and readily removed by the operator. When the convolutions of the spring are depressed they are adapted to approximate a horizontal plane by reason of the decreasing diameter of the convolutions from the base to the head ends of the volute, thus economizing space and allowing the ejectors when compressed to lie flat below the blank. Immediately upon the volute being released it springs outwardly in a direct line coaxial with the volute, thus directly and most efficiently ejecting the blank. Any side thrust upon the spring is also compensated by the spring, its action being universal and permitting side thrust without straining or breal'iing it. The upper end of the volute may be formed in any design desired. For illustration in Fig. 9 the head end of: the \olute oi? angle shape, but its member 12 lies in a horizontal.plane as does the coi'ivolution T on he upper end oi? the volute illustrated, in Fig. I and other constructions, so as to form a. broad 'l'lat bearing il or the blank to rest against, thus steadying the action of the spring when. it is being compressed or is expanding.

The form of ejector illustrated in Fig. 3 and described is particularly adapted for use in connection with flat wooden. terms employed in blanking machines, although it is obvious that it can when desired be used on metal. score forms; however, I have provided another il Ol'll'l of my invention which is also adapted for use on metal score forms or where metal furniture is used to build up a form in the chase. This latter construc tion is illustrated. in 7 and consists of a spring volute 22 having its lower convolution 13 secured on the top of a square block or body 14-, made oi? h'in metal and provided with upturned clips 15, which engage over and hold the lower coni'oh'ition ti htly in place upon the top 16 of the block. illhis block is adapted to be secured by the metal ilurnitin'e in the term on the chase, and its top is adapted to lie substantially in the plane of the surface of the form. The head end of the iolute or spring 9... is enlarged in diameter and its upper convolution 17 is made to rest in a horizontal plane parallel with the plane of the surface of the block for the purpose of producing stability of the spring volute it is compressed and expands.

Another form oil? the ejector employing a block is illustrated in Fig. 8, but in this construction the block 18 is hollow and its upper end ll) open. ".he spiral spring 20 is secured by its lower end in the lower end of the block and its upper end extends above the block. lhe diameter of: the con'volutions oi? this spring is the same throughout the spring. The increased distance aflorded by the hollow block in which the spring can be five cents compressed permits of this construction whereby the spring is adapted to compress wholly within the block with its upper convolution 21 lying in the same plane, as the top of the block. The sides of the block in this construction afford a lateral guiding means for the spring to prevent it from buckling while it is being compressed.

In accordance with the patent statutes I have described the principles of operation oil? my invention together with the apparatus which I now consider to represent the best embodiment thereof but I desire to have it understood that the construction shown is only illustratire and that the invention can be carried out by other means and applied to uses other than. those above set forth within the scope of the "following claim.

Having described my invention, what 1 clain'i as new and desire to protect by Letters Patent is An ejector for blanking machines, consisting oil? a base plate having a fastener on its upper surface and being formed with projecting members upon its lower surface adapted to engage the surface oil? a support to prevent said plate moving laterally, a spring YOllltG mounted upon and winding outwardly above the surface of said plate to iorcibly eng e the blank and lift it after the lform carrying and blank supporting members have moved apart, the convolutions oil said volute being reduced in diameter toward its outer end whereby they are adaptczl, when the volute is depressed to approximate a single plane and the base portion of said volute being secured to said plate below said tt'astener and said volute having its outer end formed in substantially a plane at right angles to the axis of said volute and adapted to form a broad bearing surface.

in testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

JOHN G. NASINEC.

l fitnesses H. L. l iscnnn, F. G. Buannony.

Washington, D. G. 

